Answer:
Hemoglobin is the iron-containing protein found in all red blood cells (RBCs) that gives the cells their characteristic red color. Hemoglobin enables RBCs to bind to oxygen in the lungs and carry it to tissues and organs throughout the body.
Explanation:
C. to lose weight i believe hop this helps!
Summary. While the left side of the heart becomes too weak to squeeze regular volumes of blood out of the heart when it pumps, this is known as systolic heart failure. Diastolic heart failure develops when the left side of the heart becomes too rigid to relax and fill with blood regularly.
Exercising regularly can help you in many things like flexibility speed body strength tolerance to running or exercising a certain amount of time
EXAMPLE:if you join gymnastics doing flips and tossing and turning flipping and running all day can increase flexibility because to do certain stunts your body needs to have a certain level of flexibility like doing back bends if you do not have the stage of flexibility that it requires you will not be capable of doing it
